Full-face helmets offer the best level of protection for mountain biking, but are often cumbersome and lack the ventilation needed for anything other than downhill. Trail helmets with a removable chin bar seem like a good solution, but many are not fully downhill certified and the removable chinbar can be a hassle. Enter the Stage MIPS Helmet from Troy Lee Designs. An impressively low weight combined with extensive ventilation make the Stage MIPS ideal for enduro style riding or racing, where technical descents worthy of a full-face helmet are mixed in with climbs and long transfer stages. It's still downhill certified, ensuring it can hold up to high-energy impacts if you're riding DH or bike park, but the lightweight and highly-ventilated design make it much more enjoyable for the.